fixed bug that was accidentally introduced when the change from metacatURL to URL was done.
added location info to catch statements
added precise location information (class.method) to each catch statement so that errors are more easily traced.
removed print statements
included implementation for public "read" access as specified from the access file
fixed introduced problem with preparedStatements
Added license terms to source code files, and cleaned up some javadocdocumentation in a few places.
Added License terms to source files, added more documentation to protocolhandler classes.
closed all preparedStatement variables
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